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Everything about Pre-echo

Digital audio compression artifact

In audio signal processing, pre-echo, is a digital audio compression artifact where in the reconstructed signal, a sound is heard before it occurs in the original signal. It is most noticeable in sharp impulsive sounds (transients) from percussion instruments such as castanets or cymbals. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Pre-echoA 5-minute orientation
  2. Skim a recent paper: Multi-Scale Convolutional Echo State Network With an Effective Pre-Training Strategy for Solar Irradiance ForecastingInfluential work since 2022
  3. Pick up a classic book: White FangThe most-reprinted book on the subject
  4. Read the landmark paper: Animation in Palaeolithic art: a pre-echo of cinemaCited 73 times
  5. Go sideways: Audio coding formatA closely related topic
  6. Go sideways: Compression artifactA closely related topic

📖 Definitions

Noun An early sign or indication of something; a foreshadowing.

Noun A digital audio compression artifact where a (typically percussive) sound is heard before it should occur.

🗂️ The subject at a glance

  1. Cause
  2. Audibility
  3. Mitigation

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics